diff --git a/NAMESPACE b/NAMESPACE
index 40f1799c4..395870c9b 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -33,6 +33,7 @@ export(get_demographic_cohorts_path)
 export(get_dev_dir)
 export(get_dn_costs_path)
 export(get_dn_raw_costs_path)
+export(get_existing_data_for_tests)
 export(get_file_path)
 export(get_gp_ooh_costs_path)
 export(get_gp_ooh_raw_costs_path)
diff --git a/R/get_existing_data_for_tests.R b/R/get_existing_data_for_tests.R
index af3730a04..5ef6ac8dd 100644
--- a/R/get_existing_data_for_tests.R
+++ b/R/get_existing_data_for_tests.R
@@ -16,6 +16,7 @@
 #'
 #' @family test functions
 #' @seealso produce_source_extract_tests
+#' @export
 get_existing_data_for_tests <- function(new_data, file_version = "episode", anon_chi = FALSE) {
   file_version <- match.arg(file_version, c("episode", "individual"))